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Fencer Vulns
medium 6.5

CVE-2026-76265 json

Improper Access Control through REST API Endpoints in Splunk Secure Gateway

published 2026-10-07 32 d ago modified 2026-10-14 25 d ago also EUVD-2026-94617

cvss
6.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 23%
public exploits
0
none known

Summary

In Splunk Enterprise versions below 10.4.3, 10.2.7, 10.0.10, and 9.4.15, and Splunk Secure Gateway versions below 3.10.11, 3.9.25, and 3.8.72, a user who does not hold the "admin" or "power" Splunk roles could access privileged Splunk Secure Gateway functionality. With this access, the user could cause Splunk Secure Gateway to sign attacker-controlled payloads. The vulnerability is possible because multiple Splunk Secure Gateway Representational State Transfer (REST) API endpoints do not enforce authorization requirements before processing requests.

Patch / fix

  • Splunk Splunk Enterprise 9.4.15, 10.0.10, 10.2.7, 10.4.3
  • Splunk Splunk Secure Gateway 3.8.72, 3.9.25, 3.10.11

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
30 d ago

Exploit prediction

0.30% chance of exploitation in the next 30 days, higher than 23% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected products

  • Splunk Splunk Enterprise
  • Splunk Splunk Secure Gateway

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.